CN105990885B - Power input circuit - Google Patents
Power input circuit Download PDFInfo
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- CN105990885B CN105990885B CN201510078658.9A CN201510078658A CN105990885B CN 105990885 B CN105990885 B CN 105990885B CN 201510078658 A CN201510078658 A CN 201510078658A CN 105990885 B CN105990885 B CN 105990885B
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- 238000009434 installation Methods 0.000 claims description 47
- 238000001514 detection method Methods 0.000 claims description 37
- 230000005611 electricity Effects 0.000 claims description 12
- 230000005540 biological transmission Effects 0.000 claims description 10
- 230000006698 induction Effects 0.000 claims description 7
- 238000012360 testing method Methods 0.000 claims description 5
- 235000013399 edible fruits Nutrition 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 6
- 238000004364 calculation method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J2207/40—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries adapted for charging from various sources, e.g. AC, DC or multivoltage
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
A power input circuit comprises a wireless power receiver, a battery, a charging circuit, a first switch, a second switch, a third switch, a fourth switch and a fifth switch. The wireless power receiver receives power from a wireless power transmitter. The charging circuit is coupled to the battery. The first switch is controlled by a first control signal. The second switch is coupled between the first switch and a power input terminal of a computer device and is controlled by the first control signal. The third switch is coupled between the battery and the power input terminal and is controlled by a second control signal. The fourth switch is coupled between the power input terminal and the charging circuit and is controlled by a third control signal. The fifth switch is coupled between the wireless power receiver and the charging circuit and is controlled by the fourth control signal. When the wireless power receiver receives power, the third switch and the fifth switch are turned off to transmit the power to the charging circuit to charge the battery, and the power is provided to the computer device through the battery.
Description
Technical field
The present invention relates to a kind of power supply input circuit, the especially a kind of power input for maintaining system to stablize running electricity
Road.
Background technology
Portable electronic devices are usually required to have the size that reaction speed is fast, high-effect and light, thin, small.This
Outside, portable electronic devices generally include one and rechargeable battery to provide power supply.When the batteries are low, battery can be via
Wired or wireless charger charges.
Although wireless charging technology has developed one period, application is still limited to low-power level.For example, mesh
The power that preceding wireless charging technology can only generally export 5 watts (W) is used to mobile phone products.Even if wireless power standardisation bodies
The wireless charging product utilization magnetic resonance that (Alliance for Wireless, be abbreviated as A4WP) was delivered in 2014 is reachable
20W output powers and prepare to be applied to tablet computer or general portable notebook computers, but this output power is still not enough to
Meet general notebook computer in the power demand for maintaining to charge for battery while system operation.In general, can support
The system operation of notebook computer and simultaneously be battery charging rated power be at least 60W.
Therefore, it is necessary to a kind of completely new power supply input circuit frameworks, improve above-mentioned disadvantage.
Invention content
The present invention discloses a kind of power supply input circuit, including wireless power source receiver, battery, charging circuit, first switch,
Second switch, third switch, the 4th switch and the 5th switch.Wireless power source receiver receives electricity from a wireless power source conveyer
Power.Charging circuit is coupled to battery.First switch is controlled by first control signal.Second switch is coupled to first switch and one
Between one power input endpoint of computer installation, and controlled by first control signal.Third switch be coupled to battery with
Between power input endpoint, and controlled by second control signal.4th switch is coupled to power input endpoint and charging electricity
Between road, and controlled by third control signal.5th switch is coupled between wireless power source receiver and charging circuit, and
And it is controlled by the 4th control signal.When wireless power source receiver receives electric power, third switch is closed with the 5th switch,
By power transmission to charging circuit, with rechargeable battery, and computer installation is provided electrical power to by battery.
Description of the drawings
Fig. 1 shows the power supply input circuit described in an embodiment according to the present invention.
Fig. 2 shows the power supply input circuit described according to another embodiment of the present invention.
Fig. 3 shows the control circuit described in an embodiment according to the present invention.
Fig. 4 shows that the power supply input circuit described in an embodiment according to the present invention is not receiving any external power supply
When equivalent circuit diagram.
Fig. 5 shows power supply input circuit described in an embodiment according to the present invention when only detecting power-supply adapter
Equivalent circuit diagram.
Fig. 6 shows that the power supply input circuit described in an embodiment according to the present invention is only detecting wireless power source receiver
Receive equivalent circuit diagram when electric power.
Table 1:Each switch is in the switching result of different power input status.
Table 2:Each transistor is in the conducting result of different power input status
Symbol description
100,200~power supply input circuit；
110~wireless power source receiver；
120~wireless power source detection device；
130~adapter detection device；
140~charging circuit；
150~battery；
300~power-supply adapter；
350~computer system；
380~control circuit；
Adapter_in, Wireless_in~detection signal；
Ctrl_1, Ctrl_2, Ctrl_3, Ctrl_4~control signal；
I1, I2, I3, I4, I5~electric current；
Q1, Q2, Q3, Q4, Q5~transistor；
SW1, SW2, SW3, SW4, SW5~switch；
Vin~power input endpoint.
Specific implementation mode
For enable the present invention above and other objects, features and advantages be clearer and more comprehensible, it is cited below particularly go out preferable implementation
Example, and coordinate attached drawing, it elaborates.
The method for wirelessly transmitting electric power now has several kinds, wherein with magnetic induction (magnetic
Induction it is) two big mainstreams with magnetic resonance (magnetic resonance).Magnetic induction (magnetic induction)
Basic principle is in wireless power source transmission end and wireless power source receiving terminal all one coils of device, when transmission end-coil connects power supply
When so formed " electric current, which will produce magnetic energy, magnetic energy, can manufacture electric current " electromagnetic induction, and receiving terminal it is coil-induced to this electricity
Magnetic signal can generate electric power by the variation in magnetic field and charge for battery.Magnetic resonance (magnetic resonance) it is basic
Principle exchanges electromagnetic energy different from magnetic induction using mutual principle of induction, but utilizes recharging base and object identical frequency to be filled
Resonance principle carry out high efficiency of transmission energy.When wireless power source transmission end and wireless power source receiving terminal are all vibrated with identical frequency
When, wireless power source receiving terminal can receive electromagnetic field caused by wireless power source transmission end, and then receive this and transmitted
The energy come.
In general, wireless power source receiving terminal can react its power demand to wireless power source transmission end, to reach wireless
Transmit the equilibrium of supply and demand state of electric power.However, since system power load when notebook computer operates not is definite value,
But can due to user's current operation dynamic change, if directly supplying electrical power to notes type meter by wireless charger at this time
Calculation machine is used when power supply, then can work as machine due to dynamic response speed of powering is reacted not as good as notebook computer.
To solve the above-mentioned problems, the application proposes a kind of completely new power supply input circuit framework so that wireless charging produces
Product are not limited only to charging in the application in computer installation, also can be used under computer installation normal operating conditions, with
And power-supply adapter (Power Adapter), wireless charger and battery are the same as the state deposited.
Fig. 1 shows the power supply input circuit described in an embodiment according to the present invention.One embodiment of the invention, power supply are defeated
It can be the power supply input circuit for being coupled to or being contained in a computer installation to enter circuit 100, to use wired or wireless side
Formula receives electric power from power-supply adapter 300 or a wireless power source, and the electric power received is supplied to the meter of computer installation
Calculation machine system 350 and battery, or the electric power of battery storage is supplied to the computer system 350 of computer installation.The meter
Calculation machine device can be the portable electronic devices such as a notebook computer, tablet computer, mobile phone.Power supply input circuit 100
It may include a wireless power source receiver 110, such as receiver coil shown in FIG. 1,120, one turns of a wireless power source detection device
Meet device detection device 130, a charging circuit 140, a battery 150 and multiple switch SW1~SW5.Wireless power source receiver
110 to from a wireless power source conveyer receive electric power.Wireless power source detection device 120 is coupled to wireless power source receiver 110,
To detect whether wireless power source receiver 110 receives electric power, and one detection signal Wireless_ of output according to testing result
in.Adapter detection device 130 is to detect whether power-supply adapter 300 is coupled to computer installation, for example, power-supply adapter
Whether 300 be inserted into the corresponding slot of computer installation, and output detection signal Adapter_in according to testing result.It fills
Circuit 140 is coupled to battery 150, to be charged to battery 150 according to the electric power received.
An embodiment according to the present invention, switch SW1~SW5 is respectively by different control signal Ctrl_1~Ctrl_4 institutes
Control, to change the unlatching (open) of switch SW1~SW5 according to different power input status or close (close) state,
By select it is optimal in a manner of provide stabilized power source to computer system 350, to solve the above problems.As shown, switch SW1
It is coupled between adapter detection device 130 and switch SW2, and its unlatching/closed state is controlled by control signal Ctrl_1.
Switch SW2 is coupled between switch SW1 and the power input endpoint Vin of computer installation, and is controlled by control signal Ctrl_1
Make its unlatching/closed state.Switch SW3 is coupled between power input endpoint Vin and battery 150, and by control signal
Ctrl_2 controls its unlatching/closed state.Switch SW4 is coupled between power input endpoint Vin and charging circuit 140, and
Its unlatching/closed state is controlled by control signal Ctrl_3.Switch SW5 is coupled to wireless power source receiver 110 and charging circuit
Between 140, and its unlatching/closed state is controlled by control signal Ctrl_4.
An embodiment according to the present invention, when switch responsive control signal is opened, the coupled two-end-point of switch is simultaneously
It is not attached to together, form off state, and when switch responsive control signal is closed, the coupled two-end-point of switch can connect
It is connected together, forms an access.Following table 1 shows that in an embodiment of the present invention each switch is in different power input shapes
The switching result of state.
Table 1:Each switch is in the switching result of different power input status
An embodiment according to the present invention, switch SW1~SW5 can be changed it according to corresponding control signal and opened by various
It opens/closes or the element of conducting state is implemented.For example, in one embodiment of this invention, switch SW1~SW5 can divide
Do not implemented by a transistor, and each transistor respectively includes a control pole and receives corresponding control signal.
Fig. 2 shows the power supply input circuit described according to another embodiment of the present invention.Power supply input circuit 200 can be coupling
It is connected to or is contained in the power supply input circuit of a computer installation, to use wired or wireless mode from power-supply adapter
300 or one wireless power source receive electric power, and the electric power received is supplied to the computer system 350 of computer installation and electricity
Pond, or the electric power of battery storage is supplied to the computer system 350 of computer installation.The computer installation can be one
The portable electronic devices such as notebook computer, tablet computer, mobile phone.Power supply input circuit 200 may include a wireless power source
Receiver 110, for example, receiver coil shown in Fig. 2, a wireless power source detection device 120, an adapter detection device 130,
One charging circuit 140, a battery 150 and multiple transistor Q1~Q5.Wireless power source receiver 110 is to from a radio
Source conveyer receives electric power.Wireless power source detection device 120 is coupled to wireless power source receiver 110, to detect wireless power source
Whether receiver 110 receives electric power, and one detection signal Wireless_in of output according to testing result.Adapter detection dress
130 are set to detect whether power-supply adapter 300 is coupled to computer installation, for example, whether power-supply adapter 300 is inserted into meter
In the corresponding slot of calculation machine device, and output detection signal Adapter_in according to testing result.Charging circuit 140 is coupled to
Battery 150, to be charged to battery 150 according to the electric power received.
Transistor Q1~Q5 is controlled by different control signal Ctrl_1~Ctrl_4 respectively, to according to different electricity
Source input state changes conducting (ON) or cut-off (OFF) state of transistor Q1~Q5, by select it is optimal in a manner of provide it is steady
Power supply is determined to computer system 350, to solve the above problems.As shown, transistor Q1 is coupled to adapter detection device 130
Its conduction and cut-off state is controlled between transistor Q2, and by control signal Ctrl_1.Transistor Q2 is coupled to transistor Q1
Its unlatching/closed state is controlled between the power input endpoint Vin of computer installation, and by control signal Ctrl_1.It is brilliant
Body pipe Q3 is coupled between power input endpoint Vin and battery 150, and controls its conduction and cut-off by control signal Ctrl_2
State.Transistor Q4 is coupled between power input endpoint Vin and charging circuit 140, and is controlled by control signal Ctrl_3
Its conduction and cut-off state.Transistor Q5 is coupled between wireless power source receiver 110 and charging circuit 140, and is believed by control
Number Ctrl_4 controls its conduction and cut-off state.
An embodiment according to the present invention, when transistor responsive control signal is switched on, two electrode institute couplings of transistor
The two-end-point connect can link together, and form an access.It is brilliant when transistor responsive control signal is not switched on (that is, cut-off)
The two-end-point that two electrodes of body pipe are coupled does not link together, and forms off state.Following table 2 is shown the present invention's
In embodiment, each transistor is in the conducting result of different power input status.
Table 2:Each transistor is in the conducting result of different power input status
It is worth noting that, in an embodiment of the present invention, the type (for example, N-type or p-type) of transistor Q1~Q5 can be according to
System requirements and by elasticity select.For example, the type of transistor Q1~Q5 can be according to control signal Ctrl_1~Ctrl_4's
The design logic of voltage level and do corresponding design.
Fig. 3 shows the control circuit described in an embodiment according to the present invention.An embodiment according to the present invention, power supply are defeated
It can further includes a control circuit, such as control circuit shown in Fig. 3 380 to enter circuit 100/200, to receive detection signal
Adapter_in and Wireless_in, and it is defeated according to detection signal Adapter_in and the power supply shown by Wireless_in
Enter state, corresponding control signal Ctrl_1~Ctrl_4 is generated according to the logic as shown in table 1 or table 2, to control correspondence
Switch, transistor or other can change the element of its unlatching/closing or conducting state according to corresponding control signal.
In addition, in an embodiment of the present invention, other than using hardware device to implement control circuit, can also pass through software
Power input status and foundation according to detection signal Adapter_in and Wireless_in is as shown in table 1 or table 2
Logic generates corresponding control signal Ctrl_1~Ctrl_4.For example, the embedded controller in computer installation
(Embedded Controller) can receive detection signal Adapter_in and Wireless_in, and according to 2 institute of such as table 1 or table
The logic shown generates corresponding control signal Ctrl_1~Ctrl_4.Therefore, it is not limited to any generation control signal here
Embodiment.
The control logic of lower switch or transistor in various power input status will be further discussed in following paragraphs.
An embodiment according to the present invention, when power supply input circuit 100/200 does not receive any external power supply, also
That is, adapter detection device 130 and power-supply adapter 300 is not detected is coupled to computer installation, and wireless power source detects
When device 120 is also not detected wireless power source receiver 110 and receives electric power, switch SW1, SW2 and SW5 can distinguish response control
Signal Ctrl_1, Ctrl_4 are opened or transistor Q1, Q2 and Q5 can distinguish responsive control signal Ctrl_1, Ctrl_4 without
Conducting, and switch SW3 and SW4 can responsive control signal Ctrl_2, Ctrl_3 be closed respectively or transistor Q3 and Q4 can divide
Other responsive control signal Ctrl_2, Ctrl_3 are switched on.Thus, take office when power supply input circuit 100/200 does not receive
When what external power supply, then computer installation can be provided electrical power to by battery 150.
Fig. 4 shows that the power supply input circuit described in an embodiment according to the present invention is not receiving any external power supply
When equivalent circuit diagram.As shown, when power supply input circuit 100/200 does not receive any external power supply, can control
Computer installation is provided electrical power to by battery 150 under the control of signal Ctrl_1~Ctrl_4 processed, therefore, the stream of electric current I1
To flow to computer system 350 from battery 150.
According to another embodiment of the present invention, when power supply input circuit 100/200 only detects that power-supply adapter 300 is inserted into
When, also that is, when adapter detection device 130 detects that power-supply adapter 300 is coupled to computer installation, switch SW1, SW2 with
SW4 can responsive control signal Ctrl_1, Ctrl_3 be closed respectively or transistor Q1, Q2 and Q4 can distinguish responsive control signal
Ctrl_1, Ctrl_3 are switched on, and switch SW3 and SW5 can distinguish responsive control signal Ctrl_2, Ctrl_4 and be opened, or
Transistor Q3 and Q5 can respectively responsive control signal Ctrl_2, Ctrl_4 and be not turned on.Thus, work as power supply input circuit
100/200 only detect power-supply adapter 300 be inserted into when, the electric power from power-supply adapter 300 can be transferred into charging circuit
140, with rechargeable battery 150, and computer installation is also may be provided to from the electric power of power-supply adapter 300.
Fig. 5 shows that the power supply input circuit described in an embodiment according to the present invention is only detecting power-supply adapter insertion
When equivalent circuit diagram.As shown, when power supply input circuit 100/200 detects at present only 300 1 electricity of power-supply adapter
It, can be under the control of control signal Ctrl_1~Ctrl_4, by such as electricity of the electric power received from power-supply adapter 300 when power source
It is provided to computer installation shown in the flow direction for flowing I2, and by the flow direction of such as electric current I3 of the electric power received from power-supply adapter 300
It is shown to be sent to charging circuit 140, with rechargeable battery 150.
According to another embodiment of the present invention, when power supply input circuit 100/200 only detects wireless power source receiver 110
When receiving electric power, also that is, adapter detection device 130 and power-supply adapter 300 is not detected being coupled to computer installation, but
When wireless power source detection device 120 detects that wireless power source receiver 110 receives electric power, switch SW1, SW2 and SW4 can distinguish
Responsive control signal Ctrl_1, Ctrl_3 are opened or transistor Q1, Q2 and Q4 can distinguish responsive control signal Ctrl_1,
Ctrl_3 and be not turned on, and switch SW3 and SW5 responsive control signal Ctrl_2, Ctrl_4 can be closed or transistor respectively
Q3 and Q5 can distinguish responsive control signal Ctrl_2, Ctrl_4 and be switched on.Thus, when wireless power source receiver 110 connects
When receiving electric power, the electric power from wireless power source receiver 110 can be transferred into charging circuit 140, with rechargeable battery 150, and
And computer installation is provided electrical power to by battery 150.
Fig. 6 shows that the power supply input circuit described in an embodiment according to the present invention is only detecting wireless power source receiver
110 receive equivalent circuit diagram when electric power.As shown, when power supply input circuit 100/200 only detects that wireless power source connects
When receipts device 110 receives electric power, wireless power source receiver can will be come under the control of control signal Ctrl_1~Ctrl_4
110 electric power is sent to charging circuit 140 as shown in the flow direction of electric current I4, with rechargeable battery 150, and such as the flow direction of electric current I5
It is shown, computer installation is provided electrical power to by battery 150.
It is worth noting that, in an embodiment of the present invention, stable electricity is provided using the bulky capacitor characteristic of battery 150
Power charges to computer installation, then by electric power continuous received by wireless power source receiver 110 for battery 150 so that calculates
Even if machine system in the case where only wireless power source is supplied, can also provide stable electric power and be used to computer installation, and
And the disadvantage for overcoming wireless charging power supply dynamic response slow simultaneously, make computer installation either heavy duty or underloading the case where
Under, the running that can stablize.
Still another embodiment according to the present invention, when power supply input circuit 100/200 detect power-supply adapter 300 be inserted into and
Wireless power source receiver 110 is when receiving electric power simultaneously, also that is, adapter detection device 130 and detecting power-supply adapter 300
It is coupled to computer installation, and at the same time wireless power source detection device 120 detects that wireless power source receiver 110 receives electric power
When, switch SW1, SW2 and SW4 responsive control signal Ctrl_1, Ctrl_3 can be closed or transistor Q1, Q2 and Q4 meeting respectively
Responsive control signal Ctrl_1, Ctrl_3 is switched on respectively, and switch SW3 and SW5 can distinguish responsive control signal Ctrl_2,
Ctrl_4 opened or transistor Q3 and Q5 can respectively responsive control signal Ctrl_2, Ctrl_4 and be not turned on.Thus,
Electric power from power-supply adapter 300 can be transferred into charging circuit 140, with rechargeable battery 150, and come from power-supply adapter
300 electric power can also be provided to computer installation.
It is worth noting that, in this embodiment, when power supply input circuit 100/200 can simultaneously by it is wired with it is wireless
When mode receives power supply, system will be using the electric power of cable power as main power source.Therefore, in this power input
Under state, the control of switch SW1~SW5 or transistor Q1~Q5 can only detect power supply transfer with power supply input circuit 100/200
Device 300 is identical when being inserted into.Thus, be inserted into and wireless simultaneously when power supply input circuit 100/200 detects power-supply adapter 300
When power receiver 110 receives electric power, equivalent circuit will be as shown in figure 5, by the electric power received from power-supply adapter 300
Computer installation is provided to as shown in the flow direction of electric current I2, and by such as electric current I3's of the electric power received from power-supply adapter 300
Charging circuit 140 is sent to shown in flow direction, with rechargeable battery 150.In other words, wireless power source can't be utilized in the case
Electric power.
It is such as above-mentioned, in an embodiment of the present invention, when system only receives wireless power source, utilize the big electricity of battery 150
Hold characteristic is to provide stable electric power to computer installation, then by electric power continuous received by wireless power source receiver 110
Battery 150 charges so that even if computer system can also provide stable electric power in the case where only wireless power source is supplied
It is used to computer installation, and at the same time no matter the disadvantage for overcoming wireless charging power supply dynamic response slow, make computer installation
It is the running that can stablize, to overcome above problem in the case of heavy duty or underloading.
The above embodiment of the present invention can execute in many ways, for example, using hardware, software or its in conjunction with executing.
It will be understood by a person skilled in the art that the set of any component or component that execute above-mentioned function can be considered as one or more controls
The processor of above-mentioned function.This one or more processors can execute in many ways, such as by specified hardware, or using micro-
Code or software execute above-mentioned function come the common hardware programmed.
It is not implied to the use of ordinal numbers itself such as " first " of modified elements, " second ", " third " in claim
The order of the step performed by precedence or method between any priority, order of priority, each element, and be used only as marking
Know to distinguish the different elements with same names (with different ordinal numbers).
Although the present invention is disclosed as above with preferred embodiment, it is not limited to the present invention, any this field
Technical staff, without departing from the spirit and scope of the present invention, can do it is a little change and retouch, therefore protection scope of the present invention
It should be subject to claim.
Claims (10)
1. a kind of power supply input circuit, including：
One wireless power source receiver, to receive electric power from a wireless power source conveyer；
One battery；
One charging circuit is coupled to the battery；
One first switch is controlled by a first control signal；
One second switch is coupled between the first switch and a power input endpoint of a computer installation, and by this
One control signal is controlled；
One third switchs, and is coupled between the battery and the power input endpoint, and controlled by a second control signal；
One the 4th switch, is coupled between the power input endpoint and the charging circuit, and is controlled by third control signal
System；And
One the 5th switch, is coupled between the wireless power source receiver and the charging circuit, and by one the 4th control signal institute
Control,
Wherein when the wireless power source receiver receives electric power, third switch is switched with the 5th and is closed, to should
Power transmission is to the charging circuit, with the battery that charges, and provides electrical power to the computer installation by the battery.
2. power supply input circuit as described in claim 1, further includes：
One adapter detection device to detect whether a power-supply adapter is coupled to the computer installation, and is tied according to detection
Fruit exports a first detection signal,
Wherein when the adapter detection device detects that the power-supply adapter is coupled to the computer installation, the first switch with
The second switch is closed, to provide electrical power to the computer installation by the power-supply adapter.
3. power supply input circuit as claimed in claim 2, wherein when the wireless power source receiver receives electric power and the power supply
When adapter is not coupled to the computer installation, the first switch, the second switch and the 4th switch are opened.
4. power supply input circuit as claimed in claim 2, wherein when the wireless power source receiver receives electric power and the power supply
When adapter is coupled to the computer installation to provide electric power, the first switch, the second switch and the 4th switch are closed
It closes, and third switch is opened with the 5th switch, the power transmission received from the power-supply adapter extremely should
The electric power received from the power-supply adapter with the battery that charges, and is provided to the computer installation by charging circuit.
5. power supply input circuit as claimed in claim 2, further includes：
One wireless power source detection device is coupled to the wireless power source receiver, to detect whether the wireless power source receiver connects
Receive electric power, and one second detection signal of output according to testing result.
6. power supply input circuit as claimed in claim 5, further includes：
One control circuit, to receive the first detection signal and the second detection signal, and according to the first detection signal
The first control signal, the second control signal, third control signal and the 4th control are generated with the second detection signal
Signal.
7. power supply input circuit as claimed in claim 2, the wherein first switch, the second switch, third switch, this
Four switches are respectively a transistor with the 5th switch, and each transistor respectively includes a control pole and receives corresponding control letter
Number.
8. power supply input circuit as described in claim 1, wherein the wireless power source receiver by magnetic induction or magnetic resonance from
The wireless power source conveyer receives electric power.
9. power supply input circuit as claimed in claim 2, wherein when the wireless power source receiver does not receive electric power and the electricity
When source adapter is not coupled to the computer installation, the first switch, the second switch and the 5th switch are opened, and should
Third is switched to be closed with the 4th switch, to provide electrical power to the computer installation by the battery.
10. power supply input circuit as claimed in claim 2, wherein when the wireless power source receiver does not receive electric power and the electricity
When source adapter is coupled to the computer installation, the first switch, the second switch and the 4th switch are closed, and this
Three switches are switched with the 5th and are opened, to by power transmission received from the power-supply adapter to the charging circuit, with
Charge the battery, and the electric power received from the power-supply adapter is provided to the computer installation.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW104102205A TWI556543B (en) | 2015-01-23 | 2015-01-23 | Power input circuit |
| TW104102205 | 2015-01-23 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105990885A CN105990885A (en) | 2016-10-05 |
| CN105990885B true CN105990885B (en) | 2018-07-20 |
Family
ID=56434238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510078658.9A Active CN105990885B (en) | 2015-01-23 | 2015-02-13 | Power input circuit |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US9748793B2 (en) |
| CN (1) | CN105990885B (en) |
| TW (1) | TWI556543B (en) |
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| KR102158288B1 (en) * | 2012-07-09 | 2020-09-21 | 삼성전자주식회사 | Method for charging battery and an electronic device thereof |
| US11411421B2 (en) * | 2016-02-02 | 2022-08-09 | Toyota Motor Europe | Control device and method for charging a rechargeable battery |
| JP6943668B2 (en) * | 2017-07-28 | 2021-10-06 | ローム株式会社 | Electronics |
| US11631907B2 (en) * | 2017-11-02 | 2023-04-18 | Qualcomm Incorporated | System and method for charging of a battery |
| CN107707000B (en) * | 2017-11-16 | 2022-01-28 | 珠海市魅族科技有限公司 | OTG power supply and wireless charging compatible circuit, related method and terminal equipment |
| CN111684680A (en) | 2018-06-22 | 2020-09-18 | Oppo广东移动通信有限公司 | Charging device, mobile terminal and charging control method |
| CN112332501B (en) * | 2019-07-30 | 2022-11-15 | Oppo广东移动通信有限公司 | Wireless charging method and device to be charged |
| KR20210073296A (en) * | 2019-12-10 | 2021-06-18 | 삼성전자주식회사 | Levitating display device |
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| CN101261533A (en) * | 2007-03-05 | 2008-09-10 | 三星电子株式会社 | Computer and battery charging method thereof |
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| CN101071955A (en) * | 2006-05-09 | 2007-11-14 | 联想（新加坡）私人有限公司 | Power supply and electronic equipment |
| CN101261533A (en) * | 2007-03-05 | 2008-09-10 | 三星电子株式会社 | Computer and battery charging method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| US9748793B2 (en) | 2017-08-29 |
| CN105990885A (en) | 2016-10-05 |
| TWI556543B (en) | 2016-11-01 |
| US20160218521A1 (en) | 2016-07-28 |
| TW201628304A (en) | 2016-08-01 |
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